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Which chart provides the correct number of neutrons for each isotope of tin (Sn)?

A.
Isotope Number of neutrons Natural abundance (%)
120Sn 33 32.58
118Sn 24 24.22
116Sn 14 14.54
119Sn 9 8.59
124Sn 6 5.79


B.
Isotope Number of neutrons Natural abundance (%)
120Sn 70 32.58
118Sn 68 24.22
116Sn 66 14.54
119Sn 69 8.59
124Sn 74 5.79


C.
Isotope Number of neutrons Natural abundance (%)
120Sn 50 32.58
118Sn 50 24.22
116Sn 50 14.54
119Sn 50 8.59
124Sn 50 5.79


D.
Isotope Number of neutrons Natural abundance (%)
120Sn 74 32.58
118Sn 70 24.22
116Sn 69 14.54
119Sn 68 8.59
124Sn 66 5.79

If you can, show your work or why you think it is the answer.

Respuesta :

We know, Atomic mass = Atomic number + number of neutrons
Here, Atomic mass - 50 = number of neutrons [ as A.N. = 50 ]

So, According to our info. only option B can be correct, as the difference between atomic mass & number of neutrons is 50, which is atomic number of Tin (Sb)

In short, Your Answer would be Option B

Hope this helps!
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